./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-38.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-38.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c01e5fe80c9aa194bdff5fd3eb604fb7b2f3e1d0372115059c061c6b32088d9f --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 14:06:14,059 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 14:06:14,141 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 14:06:14,149 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 14:06:14,149 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 14:06:14,181 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 14:06:14,182 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 14:06:14,183 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 14:06:14,183 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 14:06:14,184 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 14:06:14,185 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 14:06:14,185 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 14:06:14,186 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 14:06:14,186 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 14:06:14,186 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 14:06:14,187 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 14:06:14,187 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 14:06:14,187 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 14:06:14,187 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 14:06:14,188 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 14:06:14,191 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 14:06:14,192 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 14:06:14,192 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 14:06:14,193 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 14:06:14,194 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 14:06:14,194 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 14:06:14,196 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 14:06:14,196 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 14:06:14,197 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 14:06:14,197 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 14:06:14,197 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 14:06:14,198 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 14:06:14,198 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 14:06:14,199 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 14:06:14,199 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 14:06:14,199 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 14:06:14,200 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 14:06:14,200 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 14:06:14,200 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 14:06:14,200 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 14:06:14,201 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 14:06:14,201 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 14:06:14,201 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c01e5fe80c9aa194bdff5fd3eb604fb7b2f3e1d0372115059c061c6b32088d9f [2024-10-14 14:06:14,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 14:06:14,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 14:06:14,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 14:06:14,486 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 14:06:14,487 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 14:06:14,488 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-38.i [2024-10-14 14:06:15,918 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 14:06:16,127 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 14:06:16,128 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-38.i [2024-10-14 14:06:16,143 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd1e6592d/266092dea3434ad689fb2847c64226ad/FLAGe4193a535 [2024-10-14 14:06:16,493 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd1e6592d/266092dea3434ad689fb2847c64226ad [2024-10-14 14:06:16,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 14:06:16,497 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 14:06:16,500 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 14:06:16,500 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 14:06:16,505 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 14:06:16,506 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:06:16" (1/1) ... [2024-10-14 14:06:16,507 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@799c3741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:06:16, skipping insertion in model container [2024-10-14 14:06:16,507 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:06:16" (1/1) ... [2024-10-14 14:06:16,542 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 14:06:16,686 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-38.i[917,930] [2024-10-14 14:06:16,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 14:06:16,779 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 14:06:16,799 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-38.i[917,930] [2024-10-14 14:06:16,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 14:06:16,860 INFO L204 MainTranslator]: Completed translation [2024-10-14 14:06:16,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:06:16 WrapperNode [2024-10-14 14:06:16,861 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 14:06:16,862 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 14:06:16,863 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 14:06:16,863 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 14:06:16,868 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:06:16" (1/1) ... [2024-10-14 14:06:16,883 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:06:16" (1/1) ... [2024-10-14 14:06:16,924 INFO L138 Inliner]: procedures = 29, calls = 177, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 512 [2024-10-14 14:06:16,925 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 14:06:16,926 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 14:06:16,926 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 14:06:16,926 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 14:06:16,936 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:06:16" (1/1) ... [2024-10-14 14:06:16,936 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:06:16" (1/1) ... [2024-10-14 14:06:16,942 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:06:16" (1/1) ... [2024-10-14 14:06:17,002 INFO L175 MemorySlicer]: Split 141 memory accesses to 2 slices as follows [2, 139]. 99 percent of accesses are in the largest equivalence class. The 21 initializations are split as follows [2, 19]. The 21 writes are split as follows [0, 21]. [2024-10-14 14:06:17,003 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:06:16" (1/1) ... [2024-10-14 14:06:17,003 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:06:16" (1/1) ... [2024-10-14 14:06:17,027 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:06:16" (1/1) ... [2024-10-14 14:06:17,032 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:06:16" (1/1) ... [2024-10-14 14:06:17,035 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:06:16" (1/1) ... [2024-10-14 14:06:17,038 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:06:16" (1/1) ... [2024-10-14 14:06:17,043 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 14:06:17,044 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 14:06:17,044 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 14:06:17,044 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 14:06:17,045 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:06:16" (1/1) ... [2024-10-14 14:06:17,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 14:06:17,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 14:06:17,084 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 14:06:17,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 14:06:17,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 14:06:17,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-14 14:06:17,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-14 14:06:17,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-14 14:06:17,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-14 14:06:17,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-14 14:06:17,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-14 14:06:17,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-14 14:06:17,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-14 14:06:17,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-10-14 14:06:17,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-10-14 14:06:17,143 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 14:06:17,143 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 14:06:17,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 14:06:17,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 14:06:17,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 14:06:17,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 14:06:17,273 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 14:06:17,275 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 14:06:17,822 INFO L? ?]: Removed 108 outVars from TransFormulas that were not future-live. [2024-10-14 14:06:17,822 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 14:06:17,868 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 14:06:17,869 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 14:06:17,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:06:17 BoogieIcfgContainer [2024-10-14 14:06:17,872 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 14:06:17,875 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 14:06:17,875 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 14:06:17,879 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 14:06:17,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 02:06:16" (1/3) ... [2024-10-14 14:06:17,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2836ba3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:06:17, skipping insertion in model container [2024-10-14 14:06:17,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:06:16" (2/3) ... [2024-10-14 14:06:17,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2836ba3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:06:17, skipping insertion in model container [2024-10-14 14:06:17,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:06:17" (3/3) ... [2024-10-14 14:06:17,883 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-38.i [2024-10-14 14:06:17,901 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 14:06:17,902 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 14:06:17,980 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 14:06:17,988 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3a9c69e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 14:06:17,989 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 14:06:17,994 INFO L276 IsEmpty]: Start isEmpty. Operand has 115 states, 88 states have (on average 1.4090909090909092) internal successors, (124), 89 states have internal predecessors, (124), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-14 14:06:18,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-10-14 14:06:18,014 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:06:18,015 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:06:18,015 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:06:18,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:06:18,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1437029608, now seen corresponding path program 1 times [2024-10-14 14:06:18,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:06:18,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832193597] [2024-10-14 14:06:18,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:06:18,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:06:18,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:18,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:06:18,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:18,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:06:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:18,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:06:18,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:18,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:06:18,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:18,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:06:18,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:18,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:06:18,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:18,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:06:18,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:18,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:06:18,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:18,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 14:06:18,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:18,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:06:18,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:18,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 14:06:18,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:18,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:06:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:18,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:06:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:18,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:06:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:18,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:06:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:18,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:06:18,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:18,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:06:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:18,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:06:18,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:18,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 14:06:18,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:18,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 14:06:18,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:18,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 14:06:18,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:18,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-14 14:06:18,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:18,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-14 14:06:18,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:18,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 14:06:18,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:18,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-10-14 14:06:18,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:06:18,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832193597] [2024-10-14 14:06:18,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832193597] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:06:18,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:06:18,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 14:06:18,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149171630] [2024-10-14 14:06:18,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:06:18,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 14:06:18,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:06:18,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 14:06:18,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 14:06:18,587 INFO L87 Difference]: Start difference. First operand has 115 states, 88 states have (on average 1.4090909090909092) internal successors, (124), 89 states have internal predecessors, (124), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) [2024-10-14 14:06:18,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:06:18,640 INFO L93 Difference]: Finished difference Result 227 states and 366 transitions. [2024-10-14 14:06:18,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 14:06:18,643 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) Word has length 179 [2024-10-14 14:06:18,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:06:18,672 INFO L225 Difference]: With dead ends: 227 [2024-10-14 14:06:18,672 INFO L226 Difference]: Without dead ends: 113 [2024-10-14 14:06:18,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 14:06:18,692 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 14:06:18,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 163 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 14:06:18,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-10-14 14:06:18,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2024-10-14 14:06:18,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 87 states have (on average 1.367816091954023) internal successors, (119), 87 states have internal predecessors, (119), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-14 14:06:18,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 167 transitions. [2024-10-14 14:06:18,780 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 167 transitions. Word has length 179 [2024-10-14 14:06:18,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:06:18,780 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 167 transitions. [2024-10-14 14:06:18,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) [2024-10-14 14:06:18,781 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 167 transitions. [2024-10-14 14:06:18,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-10-14 14:06:18,784 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:06:18,785 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:06:18,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 14:06:18,785 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:06:18,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:06:18,786 INFO L85 PathProgramCache]: Analyzing trace with hash 559070352, now seen corresponding path program 1 times [2024-10-14 14:06:18,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:06:18,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215944709] [2024-10-14 14:06:18,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:06:18,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:06:19,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:20,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:06:20,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:20,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:06:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:20,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:06:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:20,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:06:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:20,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:06:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:20,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:06:20,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:20,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:06:20,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:20,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:06:20,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:20,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 14:06:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:20,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:06:20,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:20,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 14:06:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:20,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:06:20,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:20,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:06:20,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:20,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:06:20,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:20,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:06:20,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:20,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:06:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:20,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:06:20,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:20,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:06:20,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:20,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 14:06:20,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:20,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 14:06:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:20,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 14:06:20,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:20,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-14 14:06:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:20,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-14 14:06:20,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:20,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 14:06:20,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:20,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-10-14 14:06:20,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:06:20,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215944709] [2024-10-14 14:06:20,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215944709] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:06:20,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:06:20,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 14:06:20,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033913942] [2024-10-14 14:06:20,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:06:20,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 14:06:20,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:06:20,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 14:06:20,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 14:06:20,356 INFO L87 Difference]: Start difference. First operand 113 states and 167 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-10-14 14:06:20,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:06:20,787 INFO L93 Difference]: Finished difference Result 258 states and 381 transitions. [2024-10-14 14:06:20,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 14:06:20,790 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 179 [2024-10-14 14:06:20,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:06:20,792 INFO L225 Difference]: With dead ends: 258 [2024-10-14 14:06:20,793 INFO L226 Difference]: Without dead ends: 146 [2024-10-14 14:06:20,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-14 14:06:20,797 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 188 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 14:06:20,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 398 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 14:06:20,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-10-14 14:06:20,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 116. [2024-10-14 14:06:20,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 90 states have (on average 1.3555555555555556) internal successors, (122), 90 states have internal predecessors, (122), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-14 14:06:20,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 170 transitions. [2024-10-14 14:06:20,822 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 170 transitions. Word has length 179 [2024-10-14 14:06:20,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:06:20,828 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 170 transitions. [2024-10-14 14:06:20,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-10-14 14:06:20,828 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 170 transitions. [2024-10-14 14:06:20,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-10-14 14:06:20,831 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:06:20,831 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:06:20,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 14:06:20,832 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:06:20,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:06:20,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1731910576, now seen corresponding path program 1 times [2024-10-14 14:06:20,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:06:20,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562718333] [2024-10-14 14:06:20,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:06:20,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:06:21,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:27,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:06:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:27,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:06:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:27,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:06:27,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:27,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:06:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:27,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:06:27,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:27,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:06:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:27,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:06:27,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:27,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:06:27,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:27,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 14:06:27,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:27,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:06:27,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:27,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 14:06:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:27,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:06:27,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:27,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:06:27,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:27,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:06:27,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:27,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:06:27,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:27,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:06:27,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:27,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:06:27,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:27,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:06:27,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:27,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 14:06:27,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:27,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 14:06:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:27,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 14:06:27,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:27,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-14 14:06:27,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:27,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-14 14:06:27,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:27,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 14:06:27,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:27,518 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-10-14 14:06:27,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:06:27,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562718333] [2024-10-14 14:06:27,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562718333] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:06:27,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:06:27,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-14 14:06:27,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014475345] [2024-10-14 14:06:27,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:06:27,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 14:06:27,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:06:27,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 14:06:27,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-10-14 14:06:27,525 INFO L87 Difference]: Start difference. First operand 116 states and 170 transitions. Second operand has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 13 states have internal predecessors, (62), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-10-14 14:06:30,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:06:30,420 INFO L93 Difference]: Finished difference Result 275 states and 402 transitions. [2024-10-14 14:06:30,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 14:06:30,421 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 13 states have internal predecessors, (62), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 179 [2024-10-14 14:06:30,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:06:30,425 INFO L225 Difference]: With dead ends: 275 [2024-10-14 14:06:30,425 INFO L226 Difference]: Without dead ends: 160 [2024-10-14 14:06:30,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2024-10-14 14:06:30,431 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 313 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-14 14:06:30,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 477 Invalid, 874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-14 14:06:30,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-10-14 14:06:30,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 133. [2024-10-14 14:06:30,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 107 states have (on average 1.3644859813084111) internal successors, (146), 107 states have internal predecessors, (146), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-14 14:06:30,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 194 transitions. [2024-10-14 14:06:30,469 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 194 transitions. Word has length 179 [2024-10-14 14:06:30,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:06:30,471 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 194 transitions. [2024-10-14 14:06:30,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 13 states have internal predecessors, (62), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-10-14 14:06:30,471 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 194 transitions. [2024-10-14 14:06:30,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-10-14 14:06:30,477 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:06:30,478 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:06:30,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 14:06:30,478 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:06:30,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:06:30,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1473745138, now seen corresponding path program 1 times [2024-10-14 14:06:30,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:06:30,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618621779] [2024-10-14 14:06:30,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:06:30,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:06:30,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:32,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:06:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:32,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:06:32,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:32,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:06:32,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:33,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:06:33,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:33,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:06:33,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:33,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:06:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:33,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:06:33,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:33,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:06:33,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:33,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 14:06:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:33,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:06:33,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:33,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 14:06:33,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:33,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:06:33,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:33,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:06:33,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:33,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:06:33,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:33,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:06:33,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:33,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:06:33,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:33,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:06:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:33,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:06:33,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:33,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 14:06:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:33,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 14:06:33,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:33,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 14:06:33,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:33,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-14 14:06:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:33,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-14 14:06:33,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:33,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 14:06:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:33,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-10-14 14:06:33,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:06:33,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618621779] [2024-10-14 14:06:33,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618621779] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:06:33,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:06:33,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 14:06:33,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965803576] [2024-10-14 14:06:33,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:06:33,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 14:06:33,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:06:33,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 14:06:33,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-10-14 14:06:33,253 INFO L87 Difference]: Start difference. First operand 133 states and 194 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-10-14 14:06:34,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:06:34,397 INFO L93 Difference]: Finished difference Result 305 states and 444 transitions. [2024-10-14 14:06:34,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 14:06:34,397 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 179 [2024-10-14 14:06:34,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:06:34,400 INFO L225 Difference]: With dead ends: 305 [2024-10-14 14:06:34,401 INFO L226 Difference]: Without dead ends: 173 [2024-10-14 14:06:34,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2024-10-14 14:06:34,405 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 211 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 14:06:34,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 461 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 14:06:34,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-10-14 14:06:34,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 146. [2024-10-14 14:06:34,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 120 states have (on average 1.3583333333333334) internal successors, (163), 120 states have internal predecessors, (163), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-14 14:06:34,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 211 transitions. [2024-10-14 14:06:34,437 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 211 transitions. Word has length 179 [2024-10-14 14:06:34,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:06:34,438 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 211 transitions. [2024-10-14 14:06:34,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-10-14 14:06:34,441 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 211 transitions. [2024-10-14 14:06:34,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-10-14 14:06:34,443 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:06:34,443 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:06:34,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 14:06:34,443 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:06:34,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:06:34,444 INFO L85 PathProgramCache]: Analyzing trace with hash 874112978, now seen corresponding path program 1 times [2024-10-14 14:06:34,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:06:34,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113145605] [2024-10-14 14:06:34,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:06:34,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:06:34,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:37,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:06:37,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:37,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:06:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:37,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:06:37,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:37,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:06:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:37,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:06:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:37,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:06:37,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:37,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:06:37,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:37,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:06:37,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:37,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 14:06:37,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:37,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:06:37,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:37,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 14:06:37,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:37,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:06:37,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:37,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:06:37,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:37,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:06:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:37,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:06:37,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:37,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:06:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:37,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:06:37,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:37,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:06:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:37,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 14:06:37,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:37,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 14:06:37,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:37,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 14:06:37,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:37,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-14 14:06:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:37,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-14 14:06:37,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:37,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 14:06:37,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:37,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-10-14 14:06:37,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:06:37,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113145605] [2024-10-14 14:06:37,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113145605] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:06:37,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:06:37,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-14 14:06:37,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617431479] [2024-10-14 14:06:37,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:06:37,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 14:06:37,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:06:37,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 14:06:37,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-10-14 14:06:37,877 INFO L87 Difference]: Start difference. First operand 146 states and 211 transitions. Second operand has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 13 states have internal predecessors, (62), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-10-14 14:06:40,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:06:40,308 INFO L93 Difference]: Finished difference Result 318 states and 459 transitions. [2024-10-14 14:06:40,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 14:06:40,309 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 13 states have internal predecessors, (62), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 179 [2024-10-14 14:06:40,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:06:40,310 INFO L225 Difference]: With dead ends: 318 [2024-10-14 14:06:40,311 INFO L226 Difference]: Without dead ends: 173 [2024-10-14 14:06:40,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2024-10-14 14:06:40,315 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 283 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 14:06:40,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 672 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1025 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 14:06:40,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-10-14 14:06:40,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 133. [2024-10-14 14:06:40,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 107 states have (on average 1.355140186915888) internal successors, (145), 107 states have internal predecessors, (145), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-14 14:06:40,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 193 transitions. [2024-10-14 14:06:40,346 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 193 transitions. Word has length 179 [2024-10-14 14:06:40,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:06:40,347 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 193 transitions. [2024-10-14 14:06:40,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 13 states have internal predecessors, (62), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-10-14 14:06:40,348 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 193 transitions. [2024-10-14 14:06:40,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-10-14 14:06:40,350 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:06:40,350 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:06:40,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 14:06:40,351 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:06:40,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:06:40,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1309208750, now seen corresponding path program 1 times [2024-10-14 14:06:40,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:06:40,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108521578] [2024-10-14 14:06:40,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:06:40,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:06:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:42,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:06:42,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:42,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:06:42,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:42,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:06:42,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:42,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:06:42,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:42,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:06:42,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:42,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:06:42,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:42,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:06:42,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:42,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:06:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:42,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 14:06:42,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:42,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:06:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:42,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 14:06:42,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:42,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:06:42,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:42,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:06:42,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:42,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:06:42,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:42,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:06:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:42,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:06:42,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:42,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:06:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:42,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:06:42,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:42,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 14:06:42,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:42,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 14:06:42,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:42,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 14:06:42,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:42,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-14 14:06:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:42,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-14 14:06:42,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:42,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 14:06:42,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:42,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-10-14 14:06:42,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:06:42,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108521578] [2024-10-14 14:06:42,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108521578] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:06:42,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:06:42,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 14:06:42,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083806135] [2024-10-14 14:06:42,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:06:42,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 14:06:42,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:06:42,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 14:06:42,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-10-14 14:06:42,498 INFO L87 Difference]: Start difference. First operand 133 states and 193 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-10-14 14:06:43,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:06:43,403 INFO L93 Difference]: Finished difference Result 294 states and 426 transitions. [2024-10-14 14:06:43,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 14:06:43,404 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 179 [2024-10-14 14:06:43,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:06:43,405 INFO L225 Difference]: With dead ends: 294 [2024-10-14 14:06:43,406 INFO L226 Difference]: Without dead ends: 162 [2024-10-14 14:06:43,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2024-10-14 14:06:43,407 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 237 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 14:06:43,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 422 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 14:06:43,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-10-14 14:06:43,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 135. [2024-10-14 14:06:43,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 109 states have (on average 1.348623853211009) internal successors, (147), 109 states have internal predecessors, (147), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-14 14:06:43,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 195 transitions. [2024-10-14 14:06:43,435 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 195 transitions. Word has length 179 [2024-10-14 14:06:43,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:06:43,435 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 195 transitions. [2024-10-14 14:06:43,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-10-14 14:06:43,436 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 195 transitions. [2024-10-14 14:06:43,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-10-14 14:06:43,439 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:06:43,439 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:06:43,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 14:06:43,439 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:06:43,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:06:43,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1051043312, now seen corresponding path program 1 times [2024-10-14 14:06:43,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:06:43,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530945316] [2024-10-14 14:06:43,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:06:43,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:06:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:45,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:06:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:45,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:06:45,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:45,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:06:45,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:45,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:06:45,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:45,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:06:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:45,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:06:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:45,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:06:45,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:45,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:06:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:45,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 14:06:45,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:45,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:06:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:45,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 14:06:45,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:45,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:06:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:46,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:06:46,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:46,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:06:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:46,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:06:46,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:46,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:06:46,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:46,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:06:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:46,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:06:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:46,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 14:06:46,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:46,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 14:06:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:46,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 14:06:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:46,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-14 14:06:46,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:46,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-14 14:06:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:46,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 14:06:46,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:46,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-10-14 14:06:46,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:06:46,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530945316] [2024-10-14 14:06:46,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530945316] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:06:46,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:06:46,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 14:06:46,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327342353] [2024-10-14 14:06:46,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:06:46,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 14:06:46,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:06:46,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 14:06:46,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-10-14 14:06:46,136 INFO L87 Difference]: Start difference. First operand 135 states and 195 transitions. Second operand has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-10-14 14:06:47,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:06:47,299 INFO L93 Difference]: Finished difference Result 296 states and 427 transitions. [2024-10-14 14:06:47,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 14:06:47,300 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 179 [2024-10-14 14:06:47,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:06:47,301 INFO L225 Difference]: With dead ends: 296 [2024-10-14 14:06:47,302 INFO L226 Difference]: Without dead ends: 162 [2024-10-14 14:06:47,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2024-10-14 14:06:47,303 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 152 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 999 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 1003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 14:06:47,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 882 Invalid, 1003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 999 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 14:06:47,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-10-14 14:06:47,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 135. [2024-10-14 14:06:47,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 109 states have (on average 1.348623853211009) internal successors, (147), 109 states have internal predecessors, (147), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-14 14:06:47,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 195 transitions. [2024-10-14 14:06:47,324 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 195 transitions. Word has length 179 [2024-10-14 14:06:47,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:06:47,327 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 195 transitions. [2024-10-14 14:06:47,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-10-14 14:06:47,327 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 195 transitions. [2024-10-14 14:06:47,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-10-14 14:06:47,329 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:06:47,329 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:06:47,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 14:06:47,329 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:06:47,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:06:47,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1031481254, now seen corresponding path program 1 times [2024-10-14 14:06:47,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:06:47,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578324109] [2024-10-14 14:06:47,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:06:47,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:06:47,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:47,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:06:47,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:47,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:06:47,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:47,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:06:47,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:47,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:06:47,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:47,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:06:47,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:47,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:06:47,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:47,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:06:47,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:47,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:06:47,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:47,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 14:06:47,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:47,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:06:47,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:47,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 14:06:47,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:47,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:06:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:47,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:06:47,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:47,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:06:47,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:47,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:06:47,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:47,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:06:47,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:47,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:06:47,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:47,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:06:47,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:47,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 14:06:47,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:47,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 14:06:47,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:47,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 14:06:47,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:47,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-14 14:06:47,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:47,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-14 14:06:47,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:47,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 14:06:47,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:47,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-10-14 14:06:47,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:06:47,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578324109] [2024-10-14 14:06:47,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578324109] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:06:47,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:06:47,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 14:06:47,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745592841] [2024-10-14 14:06:47,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:06:47,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 14:06:47,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:06:47,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 14:06:47,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 14:06:47,540 INFO L87 Difference]: Start difference. First operand 135 states and 195 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-10-14 14:06:47,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:06:47,634 INFO L93 Difference]: Finished difference Result 269 states and 389 transitions. [2024-10-14 14:06:47,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 14:06:47,634 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 180 [2024-10-14 14:06:47,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:06:47,635 INFO L225 Difference]: With dead ends: 269 [2024-10-14 14:06:47,636 INFO L226 Difference]: Without dead ends: 135 [2024-10-14 14:06:47,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 14:06:47,637 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 14:06:47,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 427 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 14:06:47,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-10-14 14:06:47,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2024-10-14 14:06:47,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 109 states have (on average 1.3302752293577982) internal successors, (145), 109 states have internal predecessors, (145), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-14 14:06:47,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 193 transitions. [2024-10-14 14:06:47,656 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 193 transitions. Word has length 180 [2024-10-14 14:06:47,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:06:47,657 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 193 transitions. [2024-10-14 14:06:47,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-10-14 14:06:47,657 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 193 transitions. [2024-10-14 14:06:47,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-10-14 14:06:47,659 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:06:47,659 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:06:47,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 14:06:47,659 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:06:47,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:06:47,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1844987851, now seen corresponding path program 1 times [2024-10-14 14:06:47,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:06:47,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002264062] [2024-10-14 14:06:47,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:06:47,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:06:47,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:54,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:06:54,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:54,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:06:54,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:54,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:06:54,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:54,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:06:54,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:54,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:06:54,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:54,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:06:54,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:54,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:06:54,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:54,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:06:54,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:54,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 14:06:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:54,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:06:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:54,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 14:06:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:54,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:06:54,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:54,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:06:54,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:54,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:06:54,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:54,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:06:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:54,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:06:54,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:54,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:06:54,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:54,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:06:54,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:54,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 14:06:54,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:54,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 14:06:54,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:54,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 14:06:54,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:54,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-14 14:06:54,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:54,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-14 14:06:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:54,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 14:06:54,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:06:55,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-10-14 14:06:55,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:06:55,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002264062] [2024-10-14 14:06:55,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002264062] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:06:55,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:06:55,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-14 14:06:55,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783322302] [2024-10-14 14:06:55,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:06:55,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-14 14:06:55,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:06:55,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-14 14:06:55,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2024-10-14 14:06:55,026 INFO L87 Difference]: Start difference. First operand 135 states and 193 transitions. Second operand has 19 states, 18 states have (on average 3.5555555555555554) internal successors, (64), 19 states have internal predecessors, (64), 4 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-10-14 14:07:00,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-14 14:07:02,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:07:02,126 INFO L93 Difference]: Finished difference Result 342 states and 484 transitions. [2024-10-14 14:07:02,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-14 14:07:02,127 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.5555555555555554) internal successors, (64), 19 states have internal predecessors, (64), 4 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 181 [2024-10-14 14:07:02,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:07:02,128 INFO L225 Difference]: With dead ends: 342 [2024-10-14 14:07:02,129 INFO L226 Difference]: Without dead ends: 208 [2024-10-14 14:07:02,129 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=211, Invalid=911, Unknown=0, NotChecked=0, Total=1122 [2024-10-14 14:07:02,130 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 529 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-10-14 14:07:02,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 693 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1075 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2024-10-14 14:07:02,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-10-14 14:07:02,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 154. [2024-10-14 14:07:02,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 128 states have (on average 1.3203125) internal successors, (169), 128 states have internal predecessors, (169), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-14 14:07:02,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 217 transitions. [2024-10-14 14:07:02,153 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 217 transitions. Word has length 181 [2024-10-14 14:07:02,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:07:02,153 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 217 transitions. [2024-10-14 14:07:02,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.5555555555555554) internal successors, (64), 19 states have internal predecessors, (64), 4 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-10-14 14:07:02,154 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 217 transitions. [2024-10-14 14:07:02,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-10-14 14:07:02,155 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:07:02,156 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:07:02,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 14:07:02,156 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:07:02,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:07:02,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1035641225, now seen corresponding path program 1 times [2024-10-14 14:07:02,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:07:02,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791984160] [2024-10-14 14:07:02,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:07:02,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:07:02,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:05,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:07:05,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:05,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:07:05,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:05,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:07:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:05,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:07:05,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:05,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:07:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:05,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:07:05,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:05,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:07:05,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:05,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:07:05,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:05,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 14:07:05,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:05,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:07:05,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:05,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 14:07:05,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:05,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:07:05,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:05,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:07:05,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:05,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:07:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:05,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:07:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:05,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:07:05,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:05,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:07:05,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:05,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:07:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:05,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 14:07:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:05,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 14:07:05,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:05,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 14:07:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:05,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-14 14:07:05,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:05,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-14 14:07:05,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:05,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 14:07:05,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:05,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 12 proven. 120 refuted. 0 times theorem prover too weak. 972 trivial. 0 not checked. [2024-10-14 14:07:05,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:07:05,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791984160] [2024-10-14 14:07:05,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791984160] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 14:07:05,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824791481] [2024-10-14 14:07:05,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:07:05,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 14:07:05,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 14:07:05,525 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 14:07:05,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 14:07:05,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:05,774 INFO L255 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 85 conjuncts are in the unsatisfiable core [2024-10-14 14:07:05,802 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 14:07:05,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-14 14:07:06,731 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-10-14 14:07:07,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-10-14 14:07:08,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-10-14 14:07:08,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-10-14 14:07:08,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-10-14 14:07:09,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-10-14 14:07:09,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-10-14 14:07:10,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-10-14 14:07:10,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-10-14 14:07:11,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-10-14 14:07:11,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-10-14 14:07:12,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-10-14 14:07:12,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-10-14 14:07:13,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 14:07:13,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 14:07:13,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-10-14 14:07:13,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 14:07:13,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 14:07:13,414 INFO L349 Elim1Store]: treesize reduction 124, result has 0.8 percent of original size [2024-10-14 14:07:13,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 71 treesize of output 50 [2024-10-14 14:07:13,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 308 proven. 284 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-10-14 14:07:13,422 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 14:07:18,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824791481] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 14:07:18,598 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 14:07:18,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2024-10-14 14:07:18,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549861191] [2024-10-14 14:07:18,598 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 14:07:18,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-14 14:07:18,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:07:18,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-14 14:07:18,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=501, Unknown=0, NotChecked=0, Total=600 [2024-10-14 14:07:18,601 INFO L87 Difference]: Start difference. First operand 154 states and 217 transitions. Second operand has 23 states, 19 states have (on average 6.473684210526316) internal successors, (123), 23 states have internal predecessors, (123), 10 states have call successors, (48), 5 states have call predecessors, (48), 7 states have return successors, (48), 6 states have call predecessors, (48), 10 states have call successors, (48)